This is a Stage 3 DINAN Tuner.  This is an Ex-Demo Box.  We only opened it to use as a display unit, it was never installed or plugged into a car.
 
This will work on F30 and F30 BMW 335. According to DINAN's Website, it will work on the following cars:

2012 - 2015 BMW 335i Sedan
2014 - 2016 BMW 335i xDrive
2014 - 2016 BMW 335i xDrive GT
2013 - 2015 BMW 335i xDrive Sedan
2014 - 2016 BMW 435i Coupe
2014 - 2016 BMW 435i Gran Coupe
2014 - 2016 BMW 435i xDrive Coupe
2014 - 2016 BMW 435i xDrive Gran Coupe

This is brand new, never been installed. I opened the box just to take pictures.

Here is some information from DINAN:

The DINANTRONICS™ Performance Tuner is a highly engineered and sophisticated piece of computer hardware and software that enhances engine performance, without negating or voiding your new car warranty coverage and without affecting long term reliability or the functionality of on-board diagnostic systems. It is also the only tuning device emissions legal in all 50 states. The ultimate objective of developing this piece of technology was to provide the ability to control every signal entering and exiting the BMW factory Engine Control Unit. These items are unique to Dinan and together they embody the apex of performance engineering in a powerful, reliable, and warrantied package.

The biggest benefit of the DINANTRONICS Performance Tuner is our ECU has the...

"...capability of setting an optimum target lambda (fuel mixture) as well as correcting short term trim which is the difference between target and scheduled fuel mixture. By matching these two correctly we can reduce knock sensor activity which will make smoother performance, protect the catalyst, increase power and allow us to make it emissions legal."- Steve Dinan

50 State Emissions Legal

The DINANTRONICS™ Performance Tuner was designed and built to be the only tuning box on the market that is emissions legal in all 50 states by virtue of California Air Resources Board executive order D-176-42.

Installation

Plug-and-Play installation in two hours or less, available through our network of 200+ Dinan Dealers. Log on to www.dinancars.com to find your nearest dealer.

Easy To Use

Dinan's ECU is Bluetooth® Smart meaning that you can change maps simply via a Bluetooth connection on your iPhone or Android device. Just install and you are done!